According to the plans, Zuckerberg’s panic bunker is described as having “white brick walls, dark steel doors and windows, dark gray siding and louvers where they occur above the roof line, and a dark gray standing seam metal roof,” giving the impression of a steel fortress for the Facebook CEO to hide in if necessary.

Zuckerberg’s compound already has a perimeter of black panel walls in an attempt to stop both trespassers and snoopers. The Facebook CEO was slammed on social media after criticizing Donald Trump’s Mexican border wall plans and then returning to his fortressed mansion.